Method for normalization in metabolomics analysis methods with endogenous reference metabolites
申请人:BIOCRATES Life Sciences AG
公开号:EP2270699A1
公开(公告)日:2011-01-05
The present invention relates to the use of endogenous reference metabolites and a method for normalization of intensity data corresponding to amounts and/or concentrations of selected target metabolites in a biological sample of a mammalian subject, wherein said intensity data are obtained by a metabolomics analysis method with one or a plurality of endogenous reference metabolites, comprising carrying out at least one in vitro metabolomics analysis method of said selected target metabolites in said biological sample, simultaneously carrying out in the same sample a quantitative analysis of one or a plurality of endogenous reference metabolites or derivatives thereof, wherein said endogenous reference metabolites are such compounds in the biological sample which are present in the subject at an essentially constant level; and wherein said endogenous reference metabolites or derivatives thereof have a molecular mass less than 1500 Da.
A method for in vitro diagnosing asphyxia and disorders related thereto, a method of in vitro estimating duration of hypoxia in a patient subjected to asphyxia, and a method for in vitro monitoring of normoxic, hypoxic and hyperoxic conditions and/or normobaric and hyperbaric oxygen therapy, includes quantitatively detecting in a biological sample of a patient a plurality of asphyxia specific endogenous compounds which are selected from the group consisting of biogenic amines; carnitine-derived compounds; amino acids; bile acids; carboxylic acids; eicosanoids; lipids; precursors of cholesterol, cholesterol metabolites; prostanoids; and sugars.